The answer is the surface water (hydrosphere).
The hydorsphere is the amount of water in all of Earth. It comes in different forms, liquid, solid and gas.
Clouds and vapor form the gas form of water. Rivers, oceans and lakes form are surface waters that form the liquid part of the hydrosphere, but this also include underground water like wells, aquifers, and underground rivers. The solid part of the hydrosphere include the ice caps. glaciers and the like.
